How many flights depart from Idaho to Seattle on average per day?

120 flights are operational daily from Idaho to Seattle as of September 2025. The most popular departure time for this route is 11:00AM, with 60% of flights per day taking off at noon.

How long does it take to fly to Seattle?

Flight times vary depending on what airport in Idaho you fly out of and what airport in Seattle you fly into. For example, flying from Lewiston to Seattle takes 1h 25m on average. On the other hand, flying from Boise to Seattle takes 1h 33m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

What airlines fly to Seattle?

Alaska Airlines, Delta and Hawaiian Airlines are the top three most popular airlines that fly to Seattle from Idaho according to our data. Alaska Airlines is the first choice among our users, with 57% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 3 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

How many flights depart from Idaho to Seattle on average per week?

The number of flights available between Idaho and Seattle is 845 per week as of September 2025. The most frequent departure day is Tue, with 17% of weekly flights leaving on this day.

What is the cheapest airline that flies from Idaho to Seattle/Tacoma Intl?

Alaska Airlines, Southwest, and Delta are the most popular carriers operating from Idaho to Seattle/Tacoma Intl

When did momondo last update prices for flights from Idaho to Seattle/Tacoma Intl Airport?

Prices for flights from Idaho to Seattle/Tacoma Intl Airport refresh daily.

How many operators does momondo search for flights from Idaho to Seattle/Tacoma Intl Airport?

As of September 2025, there are 3 operators available to choose from for flights from Idaho to Seattle/Tacoma Intl Airport.

How old do you have to be to fly from Idaho to Seattle/Tacoma Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$61 Cheap Flights from Idaho to Seattle in 2025/26

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Find the cheapest flights from Idaho to Seattle

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

5:38 pm - 6:15 pmBOI-SEA

1h 37mnonstop

7:00 am - 9:35 amSEA-BOI

1h 35mnonstop

$127Hawaiian Airlines

Find Deal

Sat, Oct 18 - Sun, Oct 19

6:30 am - 7:13 amBOI-SEA

1h 43mnonstop

7:00 am - 9:35 amSEA-BOI

1h 35mnonstop

$130Hawaiian Airlines

Find Deal

Sat, Oct 18 - Sun, Oct 19

5:38 pm - 6:15 pmBOI-SEA

1h 37mnonstop

7:00 am - 9:35 amSEA-BOI

1h 35mnonstop

$133Alaska Airlines

Find Deal

Thu, Oct 16 - Sun, Oct 19

6:00 am - 9:34 amBOI-SEA

4h 34m1 stop

5:30 am - 9:43 amSEA-BOI

3h 13m1 stop

$136Alaska Airlines

Find Deal

Tue, Mar 3 - Wed, Mar 4

4:46 pm - 5:29 pmBOI-SEA

1h 43mnonstop

8:25 am - 11:01 amSEA-BOI

1h 36mnonstop

$137Delta

Find Deal

Wed, Oct 15 - Mon, Oct 27

12:40 pm - 7:15 pmBOI-SEA

7h 35m1 stop

6:55 am - 6:45 pmSEA-BOI

10h 50m2 stops

$142Southwest

Find Deal

Wed, Oct 15 - Wed, Oct 22

12:40 pm - 7:15 pmBOI-SEA

7h 35m1 stop

6:30 am - 12:00 pmSEA-BOI

4h 30m1 stop

$144Southwest

Find Deal

Wed, Oct 15 - Thu, Oct 16

9:00 am - 9:53 amBOI-SEA

1h 53mnonstop

9:35 pm - 12:08 amSEA-BOI

1h 33mnonstop

$157Delta

Find Deal

Thu, Oct 16 - Mon, Oct 20

1:50 pm - 4:57 pmBOI-SEA

4h 07m1 stop

7:00 am - 9:35 amSEA-BOI

1h 35mnonstop

$202Multiple Airlines

Find Deal

Sat, Oct 18 - Sun, Oct 19

4:00 pm - 4:59 pmIDA-SEA

1h 59mnonstop

7:55 pm - 10:38 pmSEA-IDA

1h 43mnonstop

$308Multiple Airlines

Find Deal

Sat, Jan 17 - Sat, Jan 24

Alaska Airlines flights from Idaho to Seattle

Our best Alaska Airlines deals on Idaho to Seattle flight tickets

Alaska Airlines

Oct 16

BOI5:38 pmBoise Air Term. Gowen Fld

1h 37m

SEA6:15 pmSeattle/Tacoma Intl

Oct 19

SEA7:00 amSeattle/Tacoma Intl

1h 35m

BOI9:35 amBoise Air Term. Gowen Fld

$133

Find similar

Alaska Airlines

Mar 3

BOI6:00 amBoise Air Term. Gowen Fld

4h 34m

1 stop

SEA9:34 amSeattle/Tacoma Intl

Mar 4

SEA5:30 amSeattle/Tacoma Intl

3h 13m

1 stop

BOI9:43 amBoise Air Term. Gowen Fld

$136

Find similar

Alaska Airlines

Oct 24

GEG7:34 pmSpokane

1h 16m

SEA8:50 pmSeattle/Tacoma Intl

Oct 26

SEA9:45 pmSeattle/Tacoma Intl

1h 14m

GEG10:59 pmSpokane

$152

Find similar

Delta flights from Idaho to Seattle

Our best Delta deals on Idaho to Seattle flight tickets

Delta

Oct 15

BOI4:46 pmBoise Air Term. Gowen Fld

1h 43m

SEA5:29 pmSeattle/Tacoma Intl

Oct 27

SEA8:25 amSeattle/Tacoma Intl

1h 36m

BOI11:01 amBoise Air Term. Gowen Fld

$137

Find similar

Delta

Oct 16

BOI9:00 amBoise Air Term. Gowen Fld

1h 53m

SEA9:53 amSeattle/Tacoma Intl

Oct 20

SEA9:35 pmSeattle/Tacoma Intl

1h 33m

BOI12:08 amBoise Air Term. Gowen Fld

$157

Find similar

Delta

Dec 17

BOI1:54 pmBoise Air Term. Gowen Fld

1h 51m

SEA2:45 pmSeattle/Tacoma Intl

Dec 20

SEA9:35 pmSeattle/Tacoma Intl

1h 30m

BOI12:05 amBoise Air Term. Gowen Fld

$158

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Sat 10/18

5:38 pm-6:15 pm

Nonstop1h 37m

Seattle/Tacoma Intl

Sun 10/19

7:00 am-9:35 am

Nonstop1h 35m

$127

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Sat 10/18

6:30 am-7:13 am

Nonstop1h 43m

Seattle/Tacoma Intl

Sun 10/19

7:00 am-9:35 am

Nonstop1h 35m

$130

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Thu 10/16

5:38 pm-6:15 pm

Nonstop1h 37m

Seattle/Tacoma Intl

Sun 10/19

7:00 am-9:35 am

Nonstop1h 35m

$133

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Tue 3/3

6:00 am-9:34 am

1 stop4h 34m

Seattle/Tacoma Intl

Wed 3/4

5:30 am-9:43 am

1 stop3h 13m

$136

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Wed 10/15

4:46 pm-5:29 pm

Nonstop1h 43m

Seattle/Tacoma Intl

Mon 10/27

8:25 am-11:01 am

Nonstop1h 36m

$137

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Wed 10/15

12:40 pm-7:15 pm

1 stop7h 35m

Seattle/Tacoma Intl

Wed 10/22

6:55 am-6:45 pm

2 stops10h 50m

$142

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Wed 10/15

12:40 pm-7:15 pm

1 stop7h 35m

Seattle/Tacoma Intl

Thu 10/16

6:30 am-12:00 pm

1 stop4h 30m

$144

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Thu 10/16

9:00 am-9:53 am

Nonstop1h 53m

Seattle/Tacoma Intl

Mon 10/20

9:35 pm-12:08 am

Nonstop1h 33m

$157

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

Sat 10/18

1:50 pm-4:57 pm

1 stop4h 07m

Seattle/Tacoma Intl

Sun 10/19

7:00 am-9:35 am

Nonstop1h 35m

$202

Idaho FallsSeattle

IDA - SEA

IDASEA

Idaho Falls Fanning Field

Sat 1/17

4:00 pm-4:59 pm

Nonstop1h 59m

Seattle/Tacoma Intl

Sat 1/24

7:55 pm-10:38 pm

Nonstop1h 43m

$308

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How to get the cheapest flight ticket from Idaho to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Seattle?

In general, February is the cheapest month to fly from Idaho to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $177. If you don’t want to visit Seattle in February, then you should wait until April to fly from Idaho, when ticket prices are also cheap, with an average price of $177.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Idaho is on a Friday. momondo users have found tickets for Friday departures for as low as $416. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Idaho because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $517.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Idaho in the evening is the least expensive time of day to depart. momondo users have found prices as low as $386 when looking at flights departing in the evening. Flights to Seattle are more costly in the afternoon, with an average ticket price of $522. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Idaho to Seattle/Tacoma Intl flight route?

Fly from Boise Air Term. Gowen Fld to Seattle/Tacoma Intl for the best Idaho - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Idaho when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $198 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Idaho for as low as $175 on momondo.

What cabin class options are available on Idaho to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Idaho to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Idaho to Seattle flights?

No. A direct flight is the cheapest option for a flight between Idaho to Seattle.

Cheap Idaho to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to Seattle

Best Price Found	$150
Fastest flight time	1h 11m
Direct flights	Every day
Airports in Seattle	1 airport

The best one-way flight to Seattle from Idaho in the past 72 hours is $150. The best round-trip flight deal from Idaho to Seattle found on momondo in the last 72 hours is $258.

The fastest flight from Idaho to Seattle takes 1h 11m

Direct flights go from Idaho to Seattle every day.

There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

Search flight deals

When did momondo last update prices for flights from Idaho to Seattle/Tacoma Intl Airport?
Prices for flights from Idaho to Seattle/Tacoma Intl Airport refresh daily.
How many operators does momondo search for flights from Idaho to Seattle/Tacoma Intl Airport?
As of September 2025, there are 3 operators available to choose from for flights from Idaho to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Idaho to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Idaho to Seattle?
momondo data reveals that the most frequently booked plane model on the route from Idaho to Seattle is Embraer 175, representing 44.42% of all bookings. The subsequent popular models are Boeing 737-900 Passenger/BBJ3 (winglets) at 16.71%, Boeing 737 at 8.01%, and Boeing 737-800 Passenger/BBJ2 (winglets) at 7.93%.

Best airlines flying from Idaho to Seattle

Compare and see reviews for airlines that fly from Idaho to Seattle with momondo

Airline	Rating	Free Cancellation	Price
Hawaiian Airlines	PriceFrom $117	Free Cancellation	Rating 7.8 2,744 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $118	Free Cancellation	Rating 7.9 7,974 reviews	Search Delta flights
Alaska Airlines	PriceFrom $137	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights

Leavenworth

Tacoma

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Marysville

Puyallup

Federal Way

Kirkland

Tukwila

Shoreline

Lakewood

Centralia

Fife

Cle Elum

Redmond

Westport

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to Seattle?

Finding the right flight to Seattle from Idaho is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seattle quick and easy, saving you time and money.

Can I find flights from Idaho to Seattle with flexible booking policies on momondo?

All flight searches from Idaho to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Idaho to Seattle?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Idaho to Seattle.

I’m not ready to book a flight from Idaho to Seattle right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Idaho to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.

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Cheap flights from Idaho to Seattle from $61

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Seattle departing on 10/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Filter for what you want

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Find the cheapest flights from Idaho to Seattle

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Alaska Airlines flights from Idaho to Seattle

Our best Alaska Airlines deals on Idaho to Seattle flight tickets

Delta flights from Idaho to Seattle

Our best Delta deals on Idaho to Seattle flight tickets

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How to get the cheapest flight ticket from Idaho to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

What is the cheapest day to depart on your flight to Seattle?

What is the cheapest time of day to depart on your flight to Seattle?

What is the cheapest Idaho to Seattle/Tacoma Intl flight route?

Fly from Boise Air Term. Gowen Fld to Seattle/Tacoma Intl for the best Idaho - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

What cabin class options are available on Idaho to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Idaho to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Idaho to Seattle flights?

No. A direct flight is the cheapest option for a flight between Idaho to Seattle.

What is the cheapest airline that flies from Idaho to Seattle/Tacoma Intl?

Alaska Airlines, Southwest, and Delta are the most popular carriers operating from Idaho to Seattle/Tacoma Intl

What airlines fly to Seattle?

How many flights depart from Idaho to Seattle on average per day?

120 flights are operational daily from Idaho to Seattle as of September 2025. The most popular departure time for this route is 11:00AM, with 60% of flights per day taking off at noon.

How many flights depart from Idaho to Seattle on average per week?

The number of flights available between Idaho and Seattle is 845 per week as of September 2025. The most frequent departure day is Tue, with 17% of weekly flights leaving on this day.

How long does it take to fly to Seattle?

Cheap Idaho to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to Seattle

Best Price Found

Fastest flight time

Direct flights

Airports in Seattle

When did momondo last update prices for flights from Idaho to Seattle/Tacoma Intl Airport?

How many operators does momondo search for flights from Idaho to Seattle/Tacoma Intl Airport?

How old do you have to be to fly from Idaho to Seattle/Tacoma Intl Airport?

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

What is the most popular plane model from Idaho to Seattle?

Best airlines flying from Idaho to Seattle

Compare and see reviews for airlines that fly from Idaho to Seattle with momondo

Traveling to a place near Seattle?

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to Seattle?

Can I find flights from Idaho to Seattle with flexible booking policies on momondo?

How can momondo help me find flights from Idaho to Seattle?

I’m not ready to book a flight from Idaho to Seattle right now. Can momondo alert me if prices change?

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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Airports servicing Washington